Data / Mines / Wisconsin / Marathon County
Mines in Marathon County, Wisconsin: 31 open mines
MSHA lists 31 open mines in Marathon County, Wisconsin, run by 15 operators and employing 256 people. Since January 1, 2022 its inspectors issued 265 citations and orders there with $91,784 in proposed penalties, and operators reported 37 injury or illness cases. The operators with the most open mines are Mitch King & Sons Gravel & Trucking Inc; County Materials Corp; 3M Company. Data from MSHA, November 6, 2026.
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- Open mines
- 31
- Operators
- 15
- Employees
- 256
- Intermittent
- 27
- Active
- 2
- Temporarily Idled
- 2
- Citations and orders since January 1, 2022
- 265
- Significant and substantial
- 39 (14.7%)
- Closure orders
- 2
- High negligence or reckless
- 9
- Proposed penalties
- $91,784
- Amount paid so far
- $90,709
- Inspections
- 200
- Inspector hours on site
- 1,617
- Citations per inspection
- 1.32 (all mines 2.30)
- Accident reports
- 37
- Injury and illness cases
- 37
- Fatalities
- 0
- Latest MSHA record
- November 3, 2026
Operators with the most open mines in Marathon County, Wisconsin
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Mitch King & Sons Gravel & Trucking Inc | 5 | 9 | 20 | $2,946 | 1 |
| County Materials Corp | 4 | 11 | 7 | $1,041 | 1 |
| 3M Company | 2 | 175 | 115 | $66,347 | 27 |
| Krukowski Stone Company Inc | 2 | 8 | 17 | $2,743 | 0 |
| Kafka Road Materials LLC | 2 | 7 | 12 | $2,292 | 1 |
| Meverden Materials Inc. | 2 | 4 | 12 | $1,991 | 0 |
| Morgan Sand & Gravel LLC | 2 | 4 | 10 | $2,668 | 0 |
| R.C. Pavers, LLC | 2 | 6 | 9 | $1,331 | 0 |
| Worden Enterprises, LLC. | 2 | 5 | 7 | $1,033 | 0 |
| Pga Inc. | 2 | 2 | 1 | $147 | 0 |
| River City Stone Division Of Mathy Construction Co | 2 | 5 | 1 | $147 | 7 |
| Kafka Granite LLC | 1 | 6 | 27 | $5,048 | 0 |
| Paul Bugar Trucking Inc. | 1 | 4 | 18 | $2,710 | 0 |
| Red Rock Granite, Inc. | 1 | 6 | 5 | $752 | 0 |
| James Peterson Sons Inc | 1 | 4 | 4 | $588 | 0 |
Operators with the most citations in Marathon County, Wisconsin
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| 3M Company | 2 | 175 | 115 | $66,347 | 27 |
| Kafka Granite LLC | 1 | 6 | 27 | $5,048 | 0 |
| Mitch King & Sons Gravel & Trucking Inc | 5 | 9 | 20 | $2,946 | 1 |
| Paul Bugar Trucking Inc. | 1 | 4 | 18 | $2,710 | 0 |
| Krukowski Stone Company Inc | 2 | 8 | 17 | $2,743 | 0 |
| Kafka Road Materials LLC | 2 | 7 | 12 | $2,292 | 1 |
| Meverden Materials Inc. | 2 | 4 | 12 | $1,991 | 0 |
| Morgan Sand & Gravel LLC | 2 | 4 | 10 | $2,668 | 0 |
| R.C. Pavers, LLC | 2 | 6 | 9 | $1,331 | 0 |
| County Materials Corp | 4 | 11 | 7 | $1,041 | 1 |
| Worden Enterprises, LLC. | 2 | 5 | 7 | $1,033 | 0 |
| Red Rock Granite, Inc. | 1 | 6 | 5 | $752 | 0 |
| James Peterson Sons Inc | 1 | 4 | 4 | $588 | 0 |
| Pga Inc. | 2 | 2 | 1 | $147 | 0 |
| River City Stone Division Of Mathy Construction Co | 2 | 5 | 1 | $147 | 7 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| 3M, Greystone Plant | 3M Company | Marathon County, WI | Crushed, broken granite | 61 | 70 |
| 3M, Downtown Plant | 3M Company | Marathon County, WI | Crushed, broken granite | 114 | 45 |
| Ridgeview | Kafka Granite LLC | Marathon County, WI | Crushed, broken granite | 6 | 27 |
| Crusher No 1 | Paul Bugar Trucking Inc. | Marathon County, WI | Construction sand and gravel | 4 | 18 |
| Sandstone Quarry | Krukowski Stone Company Inc | Marathon County, WI | Dimension sandstone | 4 | 14 |
| Kafka Road Materials Crusher | Kafka Road Materials LLC | Marathon County, WI | Crushed, broken granite | 5 | 9 |
| Morgan Pit and Mill | Morgan Sand & Gravel LLC | Marathon County, WI | Construction sand and gravel | 2 | 9 |
| Mitch King Gravel, South Fork | Mitch King & Sons Gravel & Trucking Inc | Marathon County, WI | Construction sand and gravel | 2 | 9 |
| Worden Enterprises, LLC. | Worden Enterprises, LLC. | Marathon County, WI | Crushed, broken granite | 3 | 7 |
| Portable Plant #2 | R.C. Pavers, LLC | Marathon County, WI | Construction sand and gravel | 3 | 7 |
| Damitz Pit | Meverden Materials Inc. | Marathon County, WI | Construction sand and gravel | 2 | 7 |
| Mitch King Gravel | Mitch King & Sons Gravel & Trucking Inc | Marathon County, WI | Construction sand and gravel | 3 | 6 |
| Red Rock #1 Plant | Red Rock Granite, Inc. | Marathon County, WI | Crushed, broken granite | 6 | 5 |
| Rib Mt. | Meverden Materials Inc. | Marathon County, WI | Crushed, broken granite | 2 | 5 |
| Lippmann 170107-Portable | James Peterson Sons Inc | Marathon County, WI | Construction sand and gravel | 4 | 4 |
| Granite Quarry | Krukowski Stone Company Inc | Marathon County, WI | Dimension stone | 4 | 3 |
| Kafka Road Materials | Kafka Road Materials LLC | Marathon County, WI | Crushed, broken granite | 2 | 3 |
| Telesmith Screen | Mitch King & Sons Gravel & Trucking Inc | Marathon County, WI | Construction sand and gravel | 2 | 3 |
| Marathon Wash Plant | County Materials Corp | Marathon County, WI | Construction sand and gravel | 3 | 2 |
| Marathon Crushing Spread | County Materials Corp | Marathon County, WI | Construction sand and gravel | 3 | 2 |
| Portable Plant #1 | R.C. Pavers, LLC | Marathon County, WI | Crushed, broken granite | 3 | 2 |
| Marathon Sand Screener | County Materials Corp | Marathon County, WI | Construction sand and gravel | 3 | 2 |
| Portable Plant 2 | Mitch King & Sons Gravel & Trucking Inc | Marathon County, WI | Construction sand and gravel | 2 | 2 |
| Plant #26 | River City Stone Division Of Mathy Construction Co | Marathon County, WI | Construction sand and gravel | 3 | 1 |
| Weston Wash Plant | County Materials Corp | Marathon County, WI | Construction sand and gravel | 2 | 1 |
| Cedarapids 3042 | Morgan Sand & Gravel LLC | Marathon County, WI | Crushed, broken granite | 2 | 1 |
| Kpi Crusher | Pga Inc. | Marathon County, WI | Construction sand and gravel | 2 | 1 |
| Plant #18 | River City Stone Division Of Mathy Construction Co | Marathon County, WI | Construction sand and gravel | 2 | 0 |
| Crusher #1 | Worden Enterprises, LLC. | Marathon County, WI | Crushed, broken granite | 2 | 0 |
| Sandvik Screen Plant | Mitch King & Sons Gravel & Trucking Inc | Marathon County, WI | Construction sand and gravel | 0 | 0 |
| Pga Screener | Pga Inc. | Marathon County, WI | Construction sand and gravel | 0 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 18 | 58.1% |
| Crushed, broken granite | 11 | 35.5% |
| Dimension stone | 1 | 3.2% |
| Dimension sandstone | 1 | 3.2% |
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 27 | 4 | $5,935 | 9 |
| 2023 | 30 | 5 | $5,525 | 6 |
| 2024 | 81 | 15 | $23,715 | 7 |
| 2025 | 63 | 9 | $38,264 | 6 |
| 2026 | 64 | 6 | $18,345 | 9 |
Standards cited most at mines in Marathon County, Wisconsin
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 27 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 25 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 19 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 17 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 16 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.12018 | Surface metal and nonmetal mines | 8 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 5 |
Injury and illness cases at mines in Marathon County, Wisconsin
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Permanent disability | 2 |
| Days away from work or restricted activity | 25 |
| No lost time, or an occupational illness | 10 |
What the accident reports at mines in Marathon County, Wisconsin describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 13 |
| Slip or fall of person | 6 |
| Powered haulage | 5 |
| Machinery | 4 |
| Handtools (nonpowered) | 3 |
| Disorders (repeated trauma) | 2 |
| Stepping or kneeling on object | 1 |
| Striking or bumping | 1 |
| Exploding vessels under pressure | 1 |
| Other | 1 |
Equipment named in accident reports at mines in Marathon County, Wisconsin
| Equipment | Reports |
|---|---|
| Ore haulage trucks - off highway trucks | 4 |
| Hand tools (not powered) | 3 |
| Screen | 3 |
| Hand tools (powered) | 2 |
| Trucks | 1 |
| Conveyor | 1 |
| Crusher | 1 |
| Mine car | 1 |
Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.